Fluoroplastic Product:
NITOFLON Specially Oriented Film No.920UL

Ultra-thin, non-adhesive fluoroplastic film.

Outline

NITOFLON No.920UL is ultra-thin, non-adhesive film which does not contain any filler. Offers excellent features of polytetrafluoroethylene (PTFE).

Features

• Approximately twice the tensile strength and 1.5 times the breakdown voltage of NITOFLON skived film. Suitable for insulation of electric parts, especially insulating coating such as motors, transformers and field coils, as well as interlayer insulation such as spacers and slot insulation.
• Ultra-thin film with a thickness of 20µm; suitable for sliding surfaces of precision equipments such as cameras, calculators, and cassette recorders, and die-cutted packing.
• Smooth surface and non-adhesive; suitable for sliding parts.

General properties

Property			Unit	Characteristic value		JIS K 7137-2 (Ref.)
				No.900 UL	No.920 UL
Thickness			[mm]	0.05	0.05	0.05±0.01
Tensile strength	Lengthwise		[Mpa]	50	80	14.7 or more
	Widthwise		[Mpa]	11	30	－
Elongation	Lengthwise		[%]	360	120	100 or more
	Widthwise		[%]	340	250	－
Breakdown voltage			[kV]	7.4	11.3	3.5 or more
Chemical resistance (weight change rate)	Sodium hydroxide		[%]	-0.01	-0.02	Must be no change in appearance and weight variation rate of less than ±0.5%.
	Acetone		[%]	+0.02	+0.02
	Nitric acid		[%]	+0.05	+0.08
Heat resistance (weight change rate)	Test temperature range 25～350°C		[%]	0.02	0.02	Weight reduction rate must be less than 0.05%.
Dimensional variation rate	100°C	Lengthwise	[%]	1.5 (contraction)	3.3 (contraction)	－
		Widthwise	[%]	1.2 (stretch)	0.8 (stretch)
	200°C	Lengthwise	[%]	2.9 (contraction)	11.6 (contraction)
		Widthwise	[%]	1.8 (stretch)	2.4 (stretch)
	260°C	Lengthwise	[%]	2.8 (contraction)	18.5 (contraction)
		Widthwise	[%]	1.8 (stretch)	2.5 (stretch)
Water absorption rate			[%]	0.00	0.00	－
Heat conductivity			W/(m・K) (kcal/m・h・°C)	0.29(0.25)	0.23(0.20)	－
Surface roughness			μm	0.6～1.2	0.5	－

[Remarks]

*The above values are sample observed values, not the guaranteed performance.